Caterpillar original Fuel Injector 155-1819 for 3126B 3126E 3126 C7 7.2L Engine, Compatible with Construction Machinery Excavator, Aftermarket Truck Engine Fuel Injector GP original new injector

The CAT 3126 Series Diesel Fuel Injector, with OE number 155-1819, is a core component of diesel fuel injection systems for CAT 3126, 3126B and 3126E series engines. As a diesel-dedicated injection part, it delivers fuel into engine combustion chambers to support standard engine operation. Classified under the CAT 3126 product line, it is supplied as a direct replacement part for original injectors during scheduled maintenance and engine overhaul projects.

This injector supports a comprehensive list of cross-reference part numbers, covering both hyphenated and unhyphenated number formats, as well as 0R-prefixed and EX-prefixed reference codes. Every listed cross number corresponds to identical fitment specifications, enabling B2B buyers such as parts distributors, maintenance service providers and fleet operators to consolidate SKUs, reduce part number verification workload and minimize the risk of incorrect part ordering. Unified fitment also simplifies spare parts inventory management for teams operating with multiple part coding systems.

Built for heavy-duty operating conditions, the injector is compatible with a broad range of equipment across industrial, marine, power generation, truck and construction sectors. It serves as a standard spare part for routine engine servicing, unexpected breakdown repairs and bulk spare stock planning for industrial operations. B2B customers can leverage this single injector type to cover replacement demands across varied 3126 engine-powered equipment in their fleets.